class MyRev:
    def __init__(self, data):
        self.data = data
        self.index = len(data)
        
    def __iter__(self):
        return self
    
    def __next__(self):
        if self.index == 0:
            raise StopIteration

        self.index = self.index - 1
        return self.data[self.index]


myrev = MyRev('love')
for i in myrev:
    print(i,end='')
